tiennm99 ac08938ed6 polish: apply ui/ux review top-5 changes
1. Header declutter — move daily badge + practice controls out of the
   busy header into the .target section so the puzzle-number / guess
   counter / streak read as a single hierarchy line.

2. Channel-chip contrast — darken --c-red from #d64545 to #cc3838 for
   WCAG AA on white text. Drop the 0.85 opacity on .channel-range and
   bump its font size 0.68→0.72rem; was under AA on colored chips.

3. 44px touch targets — bump padding on .hints-toggle, .share-btn,
   .mode-switch button, .poss-apply. Grow .help-chip 16→24px with a
   4px invisible hit-area ring.

4. Hints-toggle collapsed state — add .possible.collapsed that strips
   the card chrome when hints are off, so the toggle reads as a
   standalone pill instead of an empty bordered container.

5. Screen reader polish — tabular-nums on mutating numeric text,
   aria-live=polite on #result, aria-invalid synced with the .invalid
   class on RGB inputs.
2026-04-24 11:39:47 +07:00
2026-04-23 15:02:47 +07:00
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